Outside diameters of conduits for electrical installations and threads for conduits and fittings SLS 989 : 1993 - Colombo Sri Lanka standards institution 1993 - 9 p. Illustration - Gr. .


BOOKS BOX B1495
FACTORY TESTING
QUALITY CONTROL
SLC CERTIFICATION
SLS
SRI LANKA STANDARDA INSTITUTION
TEST METHODS

B1495 / LDC